[crankshaft] Move CompilationPhase into separate file.

src/compiler.cc

Index: src/compiler.cc
diff --git a/src/compiler.cc b/src/compiler.cc
index 538afacc574ce71dc257d8407402de19f42a5854..7b0faf0b92d3155dbbb7e649d6c1566f65cc5738 100644
--- a/src/compiler.cc
+++ b/src/compiler.cc
@@ -1857,41 +1857,12 @@ MaybeHandle<Code> Compiler::GetConcurrentlyOptimizedCode(
 }
 
 
-CompilationPhase::CompilationPhase(const char* name, CompilationInfo* info)
-    : name_(name), info_(info) {
-  if (FLAG_hydrogen_stats) {
-    info_zone_start_allocation_size_ = info->zone()->allocation_size();
-    timer_.Start();
-  }
-}
-
-
-CompilationPhase::~CompilationPhase() {
-  if (FLAG_hydrogen_stats) {
-    size_t size = zone()->allocation_size();
-    size += info_->zone()->allocation_size() - info_zone_start_allocation_size_;
-    isolate()->GetHStatistics()->SaveTiming(name_, timer_.Elapsed(), size);
-  }
-}
-
-
-bool CompilationPhase::ShouldProduceTraceOutput() const {
-  // Trace if the appropriate trace flag is set and the phase name's first
-  // character is in the FLAG_trace_phase command line parameter.
-  AllowHandleDereference allow_deref;
-  bool tracing_on = info()->IsStub()
-      ? FLAG_trace_hydrogen_stubs
-      : (FLAG_trace_hydrogen &&
-         info()->closure()->PassesFilter(FLAG_trace_hydrogen_filter));
-  return (tracing_on &&
-      base::OS::StrChr(const_cast<char*>(FLAG_trace_phase), name_[0]) != NULL);
-}
-
 #if DEBUG
 void CompilationInfo::PrintAstForTesting() {
   PrintF("--- Source from AST ---\n%s\n",
          PrettyPrinter(isolate()).PrintProgram(literal()));
 }
 #endif
+
 }  // namespace internal
 }  // namespace v8